Home / 150,102.15-207,113.70-85,568.64

Finding the Fourth Proportional to 150,102.15, 207,113.70 and 85,568.64

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Solution

The fourth proportional to 150,102.15, 207,113.70 and 85,568.64 is: 118,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,102.15 : 207,113.70 = 85,568.64 : x
  2. Step 2: Convert to fraction form
    150,102.15/207,113.70 = 85,568.64/x
  3. Step 3: Cross multiply
    150,102.15x = 207,113.70 × 85,568.64
  4. Step 4: Simplify right side
    150,102.15x = 17,722,437,634.37
  5. Step 5: Solve for x
    x = 17,722,437,634.37/150,102.15
  6. Step 6: Final answer
    x = 118,069.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.